The FMF Q4 Hex Slip-On Exhaust is designed for Honda CRF450X riders seeking efficient exhaust flow, controlled sound output, and dependable off-road performance. This slip-on muffler incorporates internal baffles, chambers, and advanced sound-absorbing materials to improve exhaust flow while minimizing noise and power loss. Its compact, trail-focused design provides a practical upgrade for compatible Honda motorcycles.
Engineered for responsible off-road use, the FMF Q4 Hex features a U.S. Forestry-approved spark arrestor with a maintenance-free stainless steel screen. The system is designed to remain well below a 96 dB sound output on most machines, helping meet strict trail and riding-area sound requirements. Its durable construction and serviceable performance make it a reliable choice for riders who value sound control and consistent operation.
Fitment: Fits 2019–2026 Honda CRF450X models. Brand: FMF. Manufacturer part number: 041578. Vendor part number: 79-4205. Model: Q4 Hex Slip-On. This exhaust component is intended as a slip-on replacement or performance-oriented upgrade for the listed Honda CRF450X applications; verify the motorcycle model year and existing exhaust configuration before installation.
Features:
- Internal baffles, chambers, and advanced sound-absorbing materials help accelerate exhaust flow with minimal power loss
- Designed to maintain a sound output below 96 dB on most machines for compliance with strict sound requirements
- U.S. Forestry-approved spark arrestor helps support responsible off-road riding
- Maintenance-free stainless steel spark arrestor screen provides durable, reliable service
- Slip-on exhaust design fits 2019–2026 Honda CRF450X models
Fitment:
2019 Honda CRF450X
2020 Honda CRF450X
2021 Honda CRF450X
2022 Honda CRF450X
2023 Honda CRF450X
2024 Honda CRF450X
2025 Honda CRF450X
2026 Honda CRF450X